<!DOCTYPE html>
<!--来自 极客课堂视频教程 2016.07 Flask 全套\2016.07 Flask入门课程-课程1\03 Python Web开发入门\1、Web 开发介绍-->
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Calculator</title>
    <script src="js/add.js" type="text/javascript"></script>
</head>
<body>
<div align="center" style="margin-top: 40px;">
 <h2> 测试  </h2>
    <img src="images/add.png" alt="加法示例">
    <img src="{{url_for('app1_blue.static', filename='images/add.png')}}" alt="示例">
</div>
<div align="center" style="margin-top: 10px;">
    <form action="" name="form1">
        <input type="text" placeholder="adder" name="adder1">+
        <input type="text" placeholder="adder-2" name="adder2">=
        <input type="text" readonly="readonly" placeholder="result" name="result">
        <input type="button" value="计算" onclick="add()">
    </form>
</div>
</body>
</html>